Levant administration during the reign of Caliph Omar bin Al-Khattab. اداب الرافدین, [S. l.], v. 16, n. 16, p. 285–316, 1986. DOI: 10.33899/radab.1986.165974. Disponível em: https://radab.uomosul.edu.iq/index.php/radab/article/view/32762. Acesso em: 26 jun. 2026.